Carbureter.



L. k0. GILLILAND & P. A. SHARPNECK.

CARBURETER.

APPLICATION FILED NOV. 13,1911. 1, 1 1 9,821

Patented De0. 8, 1914.

3 SHBBTSSHBET 1.

L. o. 'GILLILAND & P. lA.. SHARPNBGK.

CARBURETBR ARPLICATION FILED NOV. 13, 1911,

1, 1 1 9,821 Pagented Dec. 8, 1914.

3 SHEETS-SHEET 2.

L. 0. GILLILAND & P. A. SHARPNECK.Y CARBURETER.

APPLICATION FLLED 11017.13, 1911.

1, 1 19,821 Patented Deo. 8, 1914.

3 SHEETS-SHEET 3.

UNITED STATE-.s 'PATENT OFFICE. i

LEE O. GILLILAND AND FRANK A. SHAB-PNECK, 0F CHICAGO, ILLINOIS; SAID SHARPNECK ASSIGNOR TO SAID GILLILAND.

CARBRETER.

Specification of Letters Patent.

Patented Dee. 8, 1914.

Application sied November 13, 1911. semi No. 660,022.

To allwzom. it may concern:

Be it known that we, Leo O. GinmLaNn and FRANK A. SirARPNEon, citizens of the United States, both residing at Chicago, in

the countyof Cock and State of Illinois, i

have invented certain new and useful Improvements in Carbureters, of which the following is aspecificvation.

Qur invention relates to devices for carbureting air and has especial reference to structures of this character for use in conjunction with internal combustion engines wherebyto supply the fuel charge for such engines.

One of the objects of our invention is to providea c evice easily controllable as to the volume of the fuel charge land whereby the hydro-carbonparticles may be lmore thoroughly mingled and more uniformly distributed with and in the necessary air or gas, so as to insure a more e'ven saturation than can be attained by the employment of apparatus ordinarily in use.

lAnother object of our invention is to provvide areservoir chamber wherein to always retain a mixed primary chargel of fuel whereby the associated engine may be more readily. and `quickly started. And still another objectof our invention is` to pro vide 'a structure whereby the increased ve.- locity of the pistons 'of the engine will not serve to unduly increase the richness of the charge passing through the carbureter to the end thatthe engine cylinder will receive an abnormally rich charge at hi` vh speed and a sub-no'rmal charge at a re atively low speed. But, by the operation of .our imi-`l proved device it willreceiv a charge at all times commensurate with its requirements.

Other and further objects of our invention will become readily apparent to persons Y skilled in the art from a conside-ration of the descriptions hereinafter contained taken inlconjunction with the drawings, wherein-g Figure 1 is a central vertical section of the device as connected to'a main manifold of :1n-internal combustion engine; Fig. 2 is a plan view of the same looking from below; Fig. 3 is a transverse section taken on lines 3-3 of Fig. 1, looking'withv the arrows; Fig. 4 is a side elevation;` Fig. 5 is a vertical section of a portion of the device taken at a right angle from the section shown in Fig. l; Fig. 6 is a section taken on line,6'-6 of Fig. 1; Fig. 7 is an visometricview of the 5 air vcontrolling shutters.-

In all ofthe views the `same reference characters indicate similar parts.

AThe casing 10 contains two chambers, a' i fluid, or' gasolene chamber 11 and a. mixing chamber 12.v A separable auxiliary' cas'in 1255 may be attached to the casing 10 an contains a fuel chamber, or mixture reservoir 14. The carbureter may be used without this casing or the casing may be used with other carburetersand perform the-same functions which it is designed to perform in 4connectionwith this carburetor.

In the embodiment shown the'casing 13 is secured to the easing 10 by means of screws 15 and 16, and the device, as a whole, is sel cured to the manifold 17 by screws 18 and 19. A fluid fuel inlet pipe 20 is secured to a threaded bossV 21projectingfrom thI casing` inclosing the float chamber, by means of a' QQ, as usual in suchstructures.' A float which may be of cork or a hermetically sei-.lcd hollow' metallic body, as usual, is pro-- vided with aA depending valve stem 24 to the end of which a valve 25 is connected. The valve is free to move in achamber provided in the hollow boss'Ql. lVVhenthe fluid within the chamber 11 reaches the predetermined height the. float raises the valve and closes the portfwhich controls communication between .the pipe v.20 and the chamber 11, thereby shutting off the supply Vof gasolene-T Theconduit 27 establishes communicationbetween the chamber ll and the nozzle 28, and between the outlet of the nozzle,l and the saidfchamber 11 thereis a valve 29 having a rounded end as at 30 which opens or closes communication between the chamber ll'and the outlet of the nozzle' whenthe valve stem 31 is rotated. 95 The valve stem 31 is screw threaded, as at 32, intoan cxteriorly screw-threaded,-hol

low boss 3?.A A packing gland 31 is screw threaded';on to the boss 33 and serves the t nuts nl; any -posirion desired along (led length ofthe stem. W hen this lere is rotated through a 'given are the valve. E Ois opened or closed to -zr greater or .less extent in eeeordnnee .vlth the'exent to inch the lexjer 401s moved. Themeans for controlling the air 'to be admitted' tothe mixing chamber of i-ne device 'ils elsoenr. poyeri for moying'the lever i-O- to control he admission-of gasell-:ne into seid'mixing' ehember', rop'ortionately ns the air 'admitted thereinA is', controlled by thesmne instruntalit32- v To the lon-ererd of the'ezrsing, inelosing the mixing eliainber'l, ere hinged four an# gula-r airwale shutters 4L' -e-ch Shutter car rying hing'eV member 42 for copera'tion with the-hinge'members 43 and contained on the easing; A-l'fhen the four' sl'iuters oe cnpy posiions in the Samehorizontal plane, asshovn in Fig. 1, the 'air openinginto the mixing Chamber lgissubstaritially closed by the four shutters, and when theseshutters' raised as" in'theactj of providing er.

` mixing 'chan-foe; the. extent' 'of' the openin increases sst-he s'hulzlxgm are raised, there- Nby extending the .opening redir-.ily 'fort-her' .from the nozzle QSA'asgthe are?. of .theopem ilip increases..

fr' ing theshutters and. thereby providing larger and variable openings for the admission of" air and' siinulteneos'ly increasin g the 'li-ow ofr gasolene through-the nozzle comAnw 'mensurnt-e with the ineree-sed volume of the air admitted "into the mixing. chamber of the device. Agsteni depends from the bot-oni of the easing 1Q and is surrounded ny. sleeve 46 which isjmov'ai-le freely in n ver .tiealfclirecion thereon. To one side oi vihr sleeve. 45 is n.' boss 47- whreh carries a' stud fr l he ring' cerriee four ningenexnlsei l' -reely along;

opening' for t-he'odmissionof airinto the 'will now describe the -ineansfor raisfea-:hief lie shutters 4 1. LinlrsSQ are in- Aeluded between the hingev members 57 and und are pivoted theretooy appropriate pins, so that, when the ring 56' is lift-ed the motion is independengy conveyed to each of 7e che slmtters il as Clearly apparentl from ravsings. In Fig. 5 the position of the vulve shutters 4 1 is shown in full lines, the posirion which they occupy whenv the air- :xdmissio'n opening to the mixing ehziinber is 75 elo-sed. and they are also shownin dotted lines in thepositionsl which theyloocupy when the. air-admission port thereby fully pened. By means ofthe-ontrollinglever 49 the air' admission 'shutters .4l -xny' be 80 made to occupy anyfdesiredinterniediate position,and simultaneously Wit-hair egu lering vulve 'the ggi'solene controllin. valve 4B@ is rotated and thereby, the 'quantity of -zle 3S iseorrespndingly vn-tied. The lever arm 5'2 is connected to 'the er'rn 400i the -giisolene valveby-'mcans of a link 60, Wherehy the movement of the controlling valvehandle e9 'is transmitted' to the shaft 31 of 90 the ges-rien@ vcontrolling valveSOL The reletion; of the-.gasolene pork opening to the opening of the air valve mz'ry be varied by moving the' 4nuits 38' and v39 npfor down-.on the stern 315 end clamping .the-lever 40 at 95 Any desired selected p'osrion', so that when the nir valves ere eorrrplet`3lyA 'closed the gnsole'ne valvenmy be cblose-dto anydesired enf.. The .cglsing-IO is perforated as at 62 Ld vthel perforation iS "noveredA by =severzl layers" of wire" elothjfdisks. G3. A-spaicing. ring GL! is then plabeiginbliereservoirhm ber 14 for supportI ofnotherjmok o f wire.

1 lo'th disks '65.,jthereby iprovid1ngfnn'- inter-- mediate' chamber v14E vvs 'itlfizt which may be 1 0i contained "n mixed-charg- .")f' gasolene land nir fuel for the engine. l

, The lower bunch o f Wirf- 'elohdiskspro-A vides an impediment to the flowofrhe ain-and gnsolene through the fchamberflfwhereby .greater or more intimate mixture is atta. ned

in ihe inixinghainber4-j -Tlie pckof Wire cloth also serves as 'a'. rneans of breaking; up?

into iner'pnrticleshthe fluid;A ga'solene taken.

through the' nozzle 28l,' The pack 'sejrves 115 ns a means for-further mixing thefchrrge.

before it enters theengine', as in the 'ca'se where theeha-rge hafsrerriained in the cliamher 14 for seine time. Theectionof there 1 ticulnted material tends'to produce a more intimate- .mixture of. the-liquid :1ndliuid, .or vapor and air, thereby deiiv'ering to; the' a more completely combustible han otherwise, anni the same means "lo retain the vmired charge within the miner ijafter the engine has ceased opzien, ready to be taken into the engine 'en the first turn of the crank in the proco starting. The perforntions .36 and 37 are made mnsverse of the vertical perforatio'n 35 of the nozzle 28 because when the shutters 31 are raised the air striking under the bottom surface of the shutter is deflected at an angle to the vertical plane from eachshutter across the upward surface of the nozzle and caused to sweep over the transverse perforations 236-37 on the opposite side of the respective shutter, thereby producing a more direct entraining effect over the gasolene nozzle. This eifect is produced to a greater extent by the air that passes directly over the apeX end of the shutter. The end of the valve is made round instead of a needle point so that a smaller vertical movement of the valve stem 3l will effect a proportionately larger opening into the aperture of the nozzle.' This We find to be more practical than to increase the pitch of the screwthread 32.

While we have herein shown a specific embodiment of our invention it is apparent, to persons skilled in the art, that many changes may be made in the structure Within the scope of the claims Without departing from the spirit of the invention.

Having described our invention what we claim is:

1. In a device of the character' described, a casing containing a carbureting chamber, a nozzle projecting thereinto, a casing containing a chamber for fuel supply, said latter chamber communicating with said nozzle, a valve controlling said fuel supply to said nozzle, a valve comprising a plurality of vertically movable, radially opening shutters controlling the air 'supply and when open lying 1n planes to direct air against the nozzle openings and a handle for coincidentally moving said valves.

2. In a device of the character described, a casing containing a carbureting chamber, a fuel nozzle located centrally thereof projecting thereinto, a valve controlling said nozzle, an air valve for closing said chamber comprising a plurality of shutters hinged to the sides of the casing and closing by movement toward said nozzle, and when open lying in planes to direct air against the nozzle openings, and means for coincidentally moving said shutters and said fuel controlling valve.

3. In a device of the character described, a casing containing a carbureting chamber, a fuel nozzle located centrally thereof' projecting thereinto, a valve controllingr said nozzle, an air valve comprising a pluralitiY of shutters surrounding said nozzle hinged to the sides of the casing and closed by movement toward said nozzle, a threaded stem for said nozzle valve, means to turn said stern for operation of said nozzle valve, a ring surrounding said stem having con nection to said shutters, and connections between said ring and the nozzle-operating means for movement of said nozzle and shutters in harmony.

4. In a device of the character described, having a nozzle and a plurality of air-controlling shutters surrounding said nozzle, rotary means for controlling said nozzle, vertically moving lneans for controlling said shutters surrounding Said rotary nozzlecontrolling means, one of said means being adjustably connected with a movable operating member, and a movable operating member for effecting operation of said noz zle and shutters through the agency of said rotary and vertically movable means.

In testimony whereof we hereunto set our hands.

LEE 0. GILLILND. FRANK A. SHARPNECK.

In the presence of- FonE BAIN, MARY F. ALLEN. 

